package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;

/**
 * 集中处理所有异常
 */
@Slf4j
//@ResponseBody
//@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{}, 类型{}", e.getMessage(), e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        HashMap<Object, Object> errorMap = new HashMap<>();
//            //获取校验的错误提示
        bindingResult.getFieldErrors().forEach((item) -> {
            //FieldError
            String defaultMessage = item.getDefaultMessage();   //获取错误信息
            String field = item.getField();     //获取错误字段
            errorMap.put(field, defaultMessage);
        });
        return R.error(BizCodeEnume.VALID_EXCEPTION.getCode(), BizCodeEnume.VALID_EXCEPTION.getMsg()).put("data", errorMap);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleValidException(Throwable e){

        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(), BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }
}
